
Walimex pro per gimbal head C15
3-way Panhead
Walimex pro per gimbal head C15
3-way Panhead
I can't answer that as I don't know Cullmann. But I can recommend the gimbal
To be honest, I would buy a branded product. Walimex is a trademark of Foto Walser. You don't know the actual manufacturer. Benro, Jobu Design, Sirui, Wimberley would be suitable. Mantona also comes from Foto Walser. Also noname. And if you want to be more compact and have a ball head and gimbal in one, then the Flexshooter head is a good choice.
If you are talking about a 600mm f4, this product is not a good idea. You would need a Benro, a gitzo, a sirui or a Rollei instead. They also cost a lot more, but have the advantage of being better than handheld photography.